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	[ Explanation.1 ] 。
	[ Bits of Knowledge.1 ] In the past, Japanese people used to call Sea Cucumbers are Ko. Ko of keep in house is Silkworm, and ko of eat raw is Sea Cucumbers. Konowata of delicacy is guts a fish of them.
	[ Bits of Knowledge.2 ] Sea Cucumbers have front, back, top, and bottom. The side that they stick on glasses is the stomach side, and has many suckers on their legs. Also, they use their broom looking tentacles to collect sand from deep in the sea.